First of all, I'm sorry if my english isn't good enough (i'm from Spain).

My U10 battery is damaged (when i charge it, i just can use the U10 for no more that 3 hours) so i have to replace it.

I bought a compatible battery from butteryupgrade.com a couple of months ago, but the one they sent me was 5 milimeters longer than the original one, so it didn't fit in the U10 (though at batteryupgrade carried on it was the right U10 compatible battery).

Do you know where could i find an original battery (or a really compatible one) for my U10?. I'm just in despair with it.